255369920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:227

約数の個数: 224

約数和(自身を含む): 728155008

約数和(自身を除く): 472785088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 23, 26, 32, 34, 40, 46, 52, 64, 65, 68, 80, 85, 92, 104, 115, 130, 136, 157, 160, 170, 184, 208, 221, 230, 260, 272, 299, 314, 320, 340, 368, 391, 416, 442, 460, 520, 544, 598, 628, 680, 736, 782, 785, 832, 884, 920, 1040, 1088, 1105, 1196, 1256, 1360, 1472, 1495, 1564, 1570, 1768, 1840, 1955, 2041, 2080, 2210, 2392, 2512, 2669, 2720, 2990, 3128, 3140, 3536, 3611, 3680, 3910, 4082, 4160, 4420, 4784, 5024, 5083, 5338, 5440, 5980, 6256, 6280, 7072, 7222, 7360, 7820, 8164, 8840, 9568, 10048, 10166, 10205, 10676, 11960, 12512, 12560, 13345, 14144, 14444, 15640, 16328, 17680, 18055, 19136, 20332, 20410, 21352, 23920, 25024, 25120, 25415, 26690, 28888, 31280, 32656, 34697, 35360, 36110, 40664, 40820, 42704, 46943, 47840, 50240, 50830, 53380, 57776, 61387, 62560, 65312, 69394, 70720, 72220, 81328, 81640, 85408, 93886, 95680, 101660, 106760, 115552, 122774, 125120, 130624, 138788, 144440, 162656, 163280, 170816, 173485, 187772, 203320, 213520, 231104, 234715, 245548, 277576, 288880, 306935, 325312, 326560, 346970, 375544, 406640, 427040, 469430, 491096, 555152, 577760, 613870, 653120, 693940, 751088, 798031, 813280, 854080, 938860, 982192, 1110304, 1155520, 1227740, 1387880, 1502176, 1596062, 1626560, 1877720, 1964384, 2220608, 2455480, 2775760, 3004352, 3192124, 3755440, 3928768, 3990155, 4910960, 5551520, 6384248, 7510880, 7980310, 9821920, 11103040, 12768496, 15021760, 15960620, 19643840, 25536992, 31921240, 51073984, 63842480, 127684960, 255369920]

約数ペア:

[(1, 255369920), (2, 127684960), (4, 63842480), (5, 51073984), (8, 31921240), (10, 25536992), (13, 19643840), (16, 15960620), (17, 15021760), (20, 12768496), (23, 11103040), (26, 9821920), (32, 7980310), (34, 7510880), (40, 6384248), (46, 5551520), (52, 4910960), (64, 3990155), (65, 3928768), (68, 3755440), (80, 3192124), (85, 3004352), (92, 2775760), (104, 2455480), (115, 2220608), (130, 1964384), (136, 1877720), (157, 1626560), (160, 1596062), (170, 1502176), (184, 1387880), (208, 1227740), (221, 1155520), (230, 1110304), (260, 982192), (272, 938860), (299, 854080), (314, 813280), (320, 798031), (340, 751088), (368, 693940), (391, 653120), (416, 613870), (442, 577760), (460, 555152), (520, 491096), (544, 469430), (598, 427040), (628, 406640), (680, 375544), (736, 346970), (782, 326560), (785, 325312), (832, 306935), (884, 288880), (920, 277576), (1040, 245548), (1088, 234715), (1105, 231104), (1196, 213520), (1256, 203320), (1360, 187772), (1472, 173485), (1495, 170816), (1564, 163280), (1570, 162656), (1768, 144440), (1840, 138788), (1955, 130624), (2041, 125120), (2080, 122774), (2210, 115552), (2392, 106760), (2512, 101660), (2669, 95680), (2720, 93886), (2990, 85408), (3128, 81640), (3140, 81328), (3536, 72220), (3611, 70720), (3680, 69394), (3910, 65312), (4082, 62560), (4160, 61387), (4420, 57776), (4784, 53380), (5024, 50830), (5083, 50240), (5338, 47840), (5440, 46943), (5980, 42704), (6256, 40820), (6280, 40664), (7072, 36110), (7222, 35360), (7360, 34697), (7820, 32656), (8164, 31280), (8840, 28888), (9568, 26690), (10048, 25415), (10166, 25120), (10205, 25024), (10676, 23920), (11960, 21352), (12512, 20410), (12560, 20332), (13345, 19136), (14144, 18055), (14444, 17680), (15640, 16328)]